/*

 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/**

 * @test

 * @modules java.xml

 * @library /lib/testlibrary

 * @build DescribeModuleTest jdk.testlibrary.*

 * @run testng DescribeModuleTest

 * @summary Basic test for java --describe-module

 */

import jdk.testlibrary.ProcessTools;

import org.testng.annotations.Test;

import static org.testng.Assert.*;

@Test

public class DescribeModuleTest {

    /**

     * Test that the output describes java.base

     */

    private void expectJavaBase(String... args) throws Exception {

        int exitValue = ProcessTools.executeTestJava(args)

                .outputTo(System.out)

                .errorTo(System.out)

                .stdoutShouldContain("java.base")

                .stdoutShouldContain("exports java.lang")

                .stdoutShouldContain("uses java.nio.file.spi.FileSystemProvider")

                .stdoutShouldContain("contains sun.launcher")

                .stdoutShouldNotContain("requires ")

                .getExitValue();

        assertTrue(exitValue == 0);

    }

    /**

     * Test that the output describes java.xml

     */

    private void expectJavaXml(String... args) throws Exception {

        int exitValue = ProcessTools.executeTestJava(args)

                .outputTo(System.out)

                .errorTo(System.out)

                .stdoutShouldContain("java.xml")

                .stdoutShouldContain("exports javax.xml")

                .stdoutShouldContain("requires java.base")

                .stdoutShouldContain("uses javax.xml.stream.XMLInputFactory")

                .getExitValue();

        assertTrue(exitValue == 0);

    }

    /**

     * Test output/exitValue when describing an unknown module

     */

    private void expectUnknownModule(String... args) throws Exception {

        int exitValue = ProcessTools.executeTestJava(args)

                .outputTo(System.out)

                .errorTo(System.out)

                .stdoutShouldNotContain("requires java.base")

                .getExitValue();

        assertTrue(exitValue != 0);

    }

    public void testDescribeJavaBase() throws Exception {

        expectJavaBase("--describe-module", "java.base");

        expectJavaBase("--describe-module=java.base");

        expectJavaBase("-d", "java.base");

    }

    public void testDescribeJavaXml() throws Exception {

        expectJavaXml("--describe-module", "java.xml");

        expectJavaXml("--describe-module=java.xml");

        expectJavaXml("-d", "java.xml");

    }

    public void testDescribeUnknownModule() throws Exception {

        expectUnknownModule("--describe-module", "jdk.rhubarb");

        expectUnknownModule("--describe-module=jdk.rhubarb");

        expectUnknownModule("-d", "jdk.rhubarb");

    }

}